Lucas test is done to differentiate between (a) alcohol and ketone (b) alcohol and aromatic ketones (c) 1°, 2° and 3° alcohols (d) None of these

    

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Lucas test is done to differentiate between

(a) alcohol and ketone

(b) alcohol and aromatic ketones

(c) 1°, 2° and 3° alcohols

(d) None of these

Answer: (c) Lucas test is used to distinguish between 1°, 2° and 3° alcohols.
 Lucas reagent is anhy. ZnCl2 and HCl. 
3° alcohol + Lucas reagent : turbidity immediately
 2° alcohol + Lucas reagent : turbidity after 5 minutes 
1° alcohol + Lucas reagent : No turbidity at room temperature